Buggy code:
public class MSNIntro extends JDialog { User user ; boolean validName ; public MSNIntro ( Frame parent , boolean modal ) { } @ SuppressWarnings ( "unchecked" ) private void initComponents ( ) { labelWelcome = new JLabel ( ) ; jLabel1 = new JLabel ( ) ; labelAuthor = new JLabel ( ) ; jLabel2 = new JLabel ( ) ; labelEdition = new JLabel ( ) ; labelCopyright = new JLabel ( ) ; txtUserName = new JTextField ( ) ; labelAskName = new JLabel ( ) ; btStart = new JButton ( ) ; setDefaultCloseOperation ( WindowConstants . DISPOSE_ON_CLOSE ) ; setTitle ( "Dropbox<seq2seq4repair_space>MSN" ) ; setAlwaysOnTop ( true ) ; setMaximumSize ( new Dimension ( 350 , 500 ) ) ; setMinimumSize ( new Dimension ( 350 , 500 ) ) ; labelWelcome . setFont ( new Font ( "Calibri" , 1 , 24 ) ) ; labelWelcome . setHorizontalAlignment ( SwingConstants . CENTER ) ; labelWelcome . setText ( "BIENVENIDO<seq2seq4repair_space>A<seq2seq4repair_space>DROPBOX<seq2seq4repair_space>MSN" ) ; jLabel1 . setHorizontalAlignment ( SwingConstants . CENTER ) ; jLabel1 . setIcon ( new ImageIcon ( getClass ( ) . getResource ( "//GUI//msn_ultimate1.png" ) ) ) ; jLabel1 . setToolTipText ( "" ) ; labelAuthor . setFont ( new Font ( "Tahoma" , 2 , 11 ) ) ; labelAuthor . setForeground ( new Color ( 0 , 0 , 255 ) ) ; labelAuthor . setText ( "Un<seq2seq4repair_space>programa<seq2seq4repair_space>de:<seq2seq4repair_space>Juan<seq2seq4repair_space>Luis<seq2seq4repair_space>Suárez<seq2seq4repair_space>Díaz" ) ; jLabel2 . setFont ( new Font ( "Tahoma" , 2 , 11 ) ) ; jLabel2 . setForeground ( new Color ( 0 , 0 , 255 ) ) ; jLabel2 . setHorizontalAlignment ( SwingConstants . CENTER ) ; <START_BUG> jLabel2 . setText ( "v1.0" ) ; <END_BUG> labelEdition . setFont ( new Font ( "Tahoma" , 2 , 11 ) ) ; labelEdition . setForeground ( new Color ( 0 , 0 , 255 ) ) ; labelEdition . setText ( "Drobox<seq2seq4repair_space>MSN<seq2seq4repair_space>Ultimate<seq2seq4repair_space>Java<seq2seq4repair_space>Edition" ) ; labelCopyright . setFont ( new Font ( "Tahoma" , 2 , 11 ) ) ; labelCopyright . setForeground ( new Color ( 0 , 0 , 255 ) ) ; labelCopyright . setHorizontalAlignment ( SwingConstants . CENTER ) ; labelCopyright . setText ( "©<seq2seq4repair_space>2015" ) ; txtUserName . addActionListener ( new ActionListener ( ) { public void actionPerformed ( ActionEvent evt ) { txtUserNameActionPerformed ( evt ) ; } } ) ; txtUserName . addKeyListener ( new KeyAdapter ( ) { public void keyReleased ( KeyEvent evt ) { txtUserNameKeyReleased ( evt ) ; } } ) ; labelAskName . setFont ( new Font ( "Tahoma" , 1 , 11 ) ) ; labelAskName . setText ( "Introduzca<seq2seq4repair_space>un<seq2seq4repair_space>nombre<seq2seq4repair_space>para<seq2seq4repair_space>iniciar<seq2seq4repair_space>sesión:" ) ; btStart . setBackground ( new Color ( 0 , 0 , 255 ) ) ; btStart . setForeground ( new Color ( 255 , 255 , 255 ) ) ; btStart . setText ( "Iniciar<seq2seq4repair_space>sesión" ) ; btStart . addActionListener ( new ActionListener ( ) { public void actionPerformed ( ActionEvent evt ) { btStartActionPerformed ( evt ) ; } } ) ; GroupLayout layout = new GroupLayout ( getContentPane ( ) ) ; getContentPane ( ) . setLayout ( layout ) ; layout . setHorizontalGroup ( layout . createParallelGroup ( GroupLayout . Alignment . LEADING ) . addGroup ( layout . createSequentialGroup ( ) . addContainerGap ( ) . addGroup ( layout . createParallelGroup ( GroupLayout . Alignment . LEADING ) . addComponent ( labelWelcome , GroupLayout . DEFAULT_SIZE , 315 , Short . MAX_VALUE ) . addGroup ( layout . createSequentialGroup ( ) . addGap ( 10 , 10 , 10 ) . addGroup ( layout . createParallelGroup ( GroupLayout . Alignment . LEADING ) . addComponent ( txtUserName , GroupLayout . PREFERRED_SIZE , 293 , GroupLayout . PREFERRED_SIZE ) . addGroup ( layout . createParallelGroup ( GroupLayout . Alignment . LEADING , false ) . addComponent ( jLabel1 ) . addGroup ( GroupLayout . Alignment . TRAILING , layout . createSequentialGroup ( ) . addGroup ( layout . createParallelGroup ( GroupLayout . Alignment . LEADING ) . addComponent ( labelEdition ) . addComponent ( labelAuthor ) ) . addPreferredGap ( LayoutStyle . ComponentPlacement . RELATED , GroupLayout . DEFAULT_SIZE , Short . MAX_VALUE ) . addGroup ( layout . createParallelGroup ( GroupLayout . Alignment . LEADING , false ) . addComponent ( labelCopyright , GroupLayout . DEFAULT_SIZE , 50 , Short . MAX_VALUE ) . addComponent ( jLabel2 , GroupLayout . DEFAULT_SIZE , GroupLayout . DEFAULT_SIZE , Short . MAX_VALUE ) ) ) . addComponent ( labelAskName ) ) ) . addGap ( 0 , 0 , Short . MAX_VALUE ) ) ) . addContainerGap ( ) ) . addGroup ( layout . createSequentialGroup ( ) . addGap ( 126 , 126 , 126 ) . addComponent ( btStart ) . addContainerGap ( GroupLayout . DEFAULT_SIZE , Short . MAX_VALUE ) ) ) ; layout . setVerticalGroup ( layout . createParallelGroup ( GroupLayout . Alignment . LEADING ) . addGroup ( layout . createSequentialGroup ( ) . addContainerGap ( ) . addComponent ( labelWelcome ) . addPreferredGap ( LayoutStyle . ComponentPlacement . RELATED ) . addComponent ( jLabel1 ) . addPreferredGap ( LayoutStyle . ComponentPlacement . RELATED ) . addGroup ( layout . createParallelGroup ( GroupLayout . Alignment . BASELINE ) . addComponent ( labelAuthor ) . addComponent ( jLabel2 ) ) . addPreferredGap ( LayoutStyle . ComponentPlacement . RELATED ) . addGroup ( layout . createParallelGroup ( GroupLayout . Alignment . BASELINE ) . addComponent ( labelEdition ) . addComponent ( labelCopyright ) ) . addPreferredGap ( LayoutStyle . ComponentPlacement . UNRELATED ) . addComponent ( labelAskName ) . addPreferredGap ( LayoutStyle . ComponentPlacement . RELATED ) . addComponent ( txtUserName , GroupLayout . PREFERRED_SIZE , GroupLayout . DEFAULT_SIZE , GroupLayout . PREFERRED_SIZE ) . addPreferredGap ( LayoutStyle . ComponentPlacement . RELATED ) . addComponent ( btStart ) . addContainerGap ( 59 , Short . MAX_VALUE ) ) ) ; pack ( ) ; setLocationRelativeTo ( null ) ; }

Fix:
jLabel2 . setText ( "v1.1" ) ;